GB789986A - Process for the purification of crude benzene - Google Patents
Process for the purification of crude benzeneInfo
- Publication number
- GB789986A GB789986A GB36507/54A GB3650754A GB789986A GB 789986 A GB789986 A GB 789986A GB 36507/54 A GB36507/54 A GB 36507/54A GB 3650754 A GB3650754 A GB 3650754A GB 789986 A GB789986 A GB 789986A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- benzene
- sulphides
- oxides
- hydrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
- C07C7/163—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound by hydrogenation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Abstract
In purifying benzene by treating it with hydrogen at elevated temperature and pressure in the presence of catalysts which accelerate action of the hydrogen on impurities in the benzene, the hydrogen gas also contains polymerizable impurities, such gas and the crude benzene being treated in the vapour phase, without evaporation of benzene, to convert polymerizable substances in the benzene and in the gas to benzene-soluble substances of higher boiling point which remain on subsequently evaporating off the benzene and its homologues. The gases are exemplified by coke oven gas, town gas, gas obtained by low-temperature carbonization, producer gas, cracking gas, carburetted water gas, residual gases from hydrogenations or hydrocarbon syntheses. The catalysts are exemplified by oxides and sulphides of elements of Groups V, VI and VIII of the Periodic Classification, e.g. mixtures of the oxides or sulphides of molybdenum or tungsten with oxides or sulphides of cobalt or nickel, the catalyst being preferably on a carrier such as activated alumina or a zinc, magnesium or thorium oxide or silicate. A temperature of 200 DEG C. and a pressure of 30-100, preferably 50, atmospheres may be employed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE789986X | 1953-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB789986A true GB789986A (en) | 1958-01-29 |
Family
ID=6699810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36507/54A Expired GB789986A (en) | 1953-12-18 | 1954-12-16 | Process for the purification of crude benzene |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB789986A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112939722A (en) * | 2021-02-03 | 2021-06-11 | 山东汇能新材料科技股份有限公司 | Low-temperature hydrogenation process for crude benzene |
-
1954
- 1954-12-16 GB GB36507/54A patent/GB789986A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112939722A (en) * | 2021-02-03 | 2021-06-11 | 山东汇能新材料科技股份有限公司 | Low-temperature hydrogenation process for crude benzene |
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